There will never be another
Mcgwire and Sosa
Andrew C. Billings - Michael L. Butterworth - Paul D. Turman - Communication and Sport - Surveying The Field-Sage Publications, Inc (2014), PDF, Social Science
Sammy Sosa's Most Memorable Moments - Part 1 - On Tap Sports Net
BEHIND THE MIC - Home
Sammy Sosa Price List - Supercollector Catalog
sammy sosa Values - MAVIN
ESPN The Magazine
September 21, 1998 - Mark McGwire, Sammy Sosa
sammy sosa Values - MAVIN
Spring Classic 2021 - Sports Memorabilia Auctions
Spring Classic 2021 - Sports Memorabilia Auctions
Mark Mcgwire Framed Art Prints for Sale - Fine Art America
Hunt Auctions, LLC
Mcgwire Signed